I've been searching hard for a good paper / vaidation database entry relating to the flow and turbulence fields within and downstream of a simple orifice flow meter aka "plate with a circular hole in it".

Idealy I'm looking for:

-LDA measurements (both within and downstream of the orifice) -Incompressible fluid with ReD = O(10000) -Simple circular orifice plate mounted inside straight circular tube

I've searched high and low through google.scholar abstracts etc. This sort of dataset seems likely to be a well used test case for validation of CFD turbulence modelling, and yet I cant find a decent set of experimental data!

Could anyone recommned a particular paper / experimental data set?

Thanks!

You should contact Professor Gerry Morrison Texas A&M University (www.tamu.edu ?).

He and his students conducted exhaustive studies of orifice flows in the early 90's. You could also do your literature search keying on Morrison.

Good Luck!

Much obliged.

I actually already had one of his excellent papers but the Ma number was too high (> 0.3). However, following your advice I downloaded and rummaged through his CV and found a nearly identical paper at a much lower Re number.

Thanks for the help! May be convergence fairy rain blessings upon you...